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weil defined forms, the one receiving the name bivittatus and the other 
going by that of femoratus, the latter occurring only northward. 
Melanoplus differentialis, Thomas, the Differential Locust.—Next to the 
Species just mentioned we frequently find a second species of our large 
native locusts appearing in destructive numbers. This latter species 
occurs in the Western and Middle States only, and is here very often 
known to become unduly numerous and destructive to both the field 
and the garden crops. It has been reported at different times to have 
been present in such numbers in porticns ot Illinois, Indiana, Missouri, 
Kansas, Iowa, and Nebraska. A melanic or black form is quite fre- 
quent in portions of Nebraska and Kansas; but otherwise it is quite 
permanent in its character. 
Melanoplus ponderosus, Seudd., the Ponderous Locust.—An insect very | 
closely related to the aTeeotine is that known to the entomologist by 
the above name. It is a native of several of our Southern States, and 
- has on several occasions been a depredator of crops in portions of cen- 
tral Texas. As the name would imply, it is of robust form, and has a 
somewhat similar appearance to differentialis. 
Melanoplus femur-rubrum, De G., the Red-thighed Locust.—Last on 
the list of destructive locusts for North America north of Mexico, is 
herewith presented the one that perhaps enjoys the greatest geograph- 
ical range of all of our species. It is the common locust in ali parts of 
the country’from the Atlantic to the Pacific and from the Arctic circle 
to Central America. Its devastations, while perhaps not as vast as 
some of the preceding, have been more frequent and have occurred at 
more localities than those of any other one. Like the bivittatus, differ- 
entialis, and several of our non-destructive species, femur-rubrum is a 
frequenter of rather low places and rank vegetation. 
After giving these brief notes on the various species of locusts that 
have been known in the past to have been connected with the injuries 
from this class of insects within the country, it will not come amiss for 
me to say a few words about the subject for the present year, and to 
give my opinion as to the probable outlook for the coming year. 
Briefly, then, let me say that there have been received reports of locust 
injury from the following States: Alabama, Mississippi, Texas, New | 
Mexico, Arizona, California, Idaho, Colorado, Kansas, Nebraska, North 
Dakota, Minnesota, fowa, Indiana, Ohio, Michigan, and New York. 
In fact, there have been more separate reports received Wee present 
year than ever heretofore from this cause. 
Now a word or two as to the different species of these destructive 
locusts that are responsible for the injuries of the present year. In 
California the devastator is present; the Camnula pellucida is known to 
be unduly common in Idaho, Minnesota, North Dakota, and parts of 
the Rocky Mountain region; the Rocky Mountain or Migratory locust 
is the one that is responsible for much of the injury that has beén re- 
ported from the Red River Valley of Minnesota and North Dakota as 
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